发明名称 |
Valve |
摘要 |
A well tubing valve including a substantially tubular body connected in a tubular string and a rotational valve member having at least one aperture. The valve member is a sleeve having a part spherical surface, is rotationally moveable relative to the body to align and misalign the at least one aperture in the valve member with a port in the body. The valve member is actuable to rotate relative to the body in a single direction, and moves from the open position to a closed position and back by rotation in the same sense. The valve also includes a sealing arrangement adapted to provide a metal seal that is biased to seal against the part spherical surface. |
申请公布号 |
US8316953(B2) |
申请公布日期 |
2012.11.27 |
申请号 |
US20060884976 |
申请日期 |
2006.02.27 |
申请人 |
REID MICHAEL A.;BROWN IRVINE C.;RED SPIDER TECHNOLOGY LIMITED |
发明人 |
REID MICHAEL A.;BROWN IRVINE C. |
分类号 |
E21B34/10;E21B23/00;E21B34/00;E21B43/12;F16K5/00 |
主分类号 |
E21B34/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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